METHOD AND SYSTEM FOR THE DETERMINATION OF WIND SPEEDS AND INCIDENT RADIATION PARAMETERS OF OVERHEAD POWER LINES
First Claim
Patent Images
1. A method for the determination of wind speed to be used for evaluation of the ampacity in using real-time monitoring of at least one span of overhead power lines, comprising the steps of:
- measuring Aeolian vibration frequency by using outputs of at least one oscillation sensor; and
determining wind speed component perpendicular to the conductor axis according to the following equation;
V=f·
d/S wherein f is the Aeolian vibration frequency (Hz), S is the Strouhal number, V is perpendicular wind speed (m/s), and d is conductor diameter (m).
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a method and system for the determination of parameters related to the speed of wind that blows near an overhead electrical power line (single or bundle conductors). The parameters include an “effective wind speed” as well as an “effective incident radiation” acting on a power line span. The measurement is made by using the combination of mechanical vibrations and movements/positions in two or three dimensions through sensors in direct link with the power line conductor.
12 Citations
9 Claims
-
1. A method for the determination of wind speed to be used for evaluation of the ampacity in using real-time monitoring of at least one span of overhead power lines, comprising the steps of:
- measuring Aeolian vibration frequency by using outputs of at least one oscillation sensor; and
determining wind speed component perpendicular to the conductor axis according to the following equation;
V=f·
d/Swherein f is the Aeolian vibration frequency (Hz), S is the Strouhal number, V is perpendicular wind speed (m/s), and d is conductor diameter (m). - View Dependent Claims (2, 3, 4, 5)
- measuring Aeolian vibration frequency by using outputs of at least one oscillation sensor; and
-
6. A device for the determination of wind speed for evaluation of the ampacity in using real-time monitoring of at least one span of overhead power lines, comprising:
-
a sensor for attaching to a conductor of the power line, said sensor comprising an accelerometer; and a processor in connection with the sensor for calculating the wind speed; wherein the processor determining wind speed component perpendicular to the conductor axis according to the following equation;
V=f·
d/Swherein f is the Aeolian vibration frequency (Hz), S is the Strouhal number, V is perpendicular wind speed (m/s), and d is conductor diameter (m). - View Dependent Claims (7, 8, 9)
-
Specification